@incollection{ZerresZerres2017,
  author    = {Christopher Zerres and Michael Zerres},
  title     = {Einf{\"u}hrung in das Marketing-Controlling},
  series = {Handbuch Marketing-Controlling},
  edition   = {4.},
  publisher = {Springer Gabler},
  isbn      = {9783662504055},
  pages     = {3 -- 13},
  year      = {2017},
  language  = {de}
}